Pre-Vaporized Ignition Behavior of Ethyl- and Propyl-Terminated Oxymethylene Ethers - Proceedings of the Combustion Institute Vol. 39 - iP-1-iP Ignition Dataset

This is the full dataset for iP-1-iP (Propane, 2,2'-[methylenebis(oxy)]bis-) from the article "Pre-Vaporized Ignition Behavior of Ethyl- and Propyl-Terminated Oxymethylene Ethers" in Vol. 39 of the Proceedings of the Combustion Institute. Additional datasets are available for the other tested fuels. This data includes raw and processed time and pressure data from a dual-piston rapid compression machine for autoignition. Test conditions were stoichiometric with 12:1 inert:oxygen, varying the gas composition to achieve the necessary pressure range. Available data include nonreactive pressure traces for comparison. Time-based variables: - t [s] - Raw and filtered pressure [Pa] - Piston position [mm] - Real and effective volume [m^3] - Gamma (fuel gamma estimated using MIT RMG group additivity methods) Summary variables: - Inert gas ratio - Average gamma - Target and actual TDC pressure [bar] - Effective compression ratio (calculated as CR required to achieve TDC pressure in isentropic compression) - TDC temperature from effective CR and from time/gamma [K] - Isentropic efficiency - Ignition delay [ms] - Gas composition

本数据集为发表于《燃烧学会会议论文集》第39卷的论文《乙基与丙基封端聚甲醛醚的预汽化点火特性》中iP-1-iP（2,2'-[亚甲基双(氧基)]双丙烷）的完整数据集。其余受试燃料的配套数据集亦可获取。本数据集包含来自双活塞快速压缩机（dual-piston rapid compression machine）的自燃测试用原始及经处理的时间与压力数据。测试采用化学计量比工况，惰性气体与氧气的配比为12:1，通过调整气体组分以覆盖所需压力区间。可供比对的非反应性压力迹线数据亦已包含在内。
基于时间的变量包括：
- 时间t [s]
- 原始与滤波后压力 [Pa]
- 活塞位置 [mm]
- 实际与有效容积 [m³]
- 绝热指数Gamma（燃料绝热指数通过麻省理工学院RMG基团加和法估算得到）
汇总变量包括：
- 惰性气体比例
- 平均绝热指数
- 目标与实际上止点压力 [bar]
- 有效压缩比（以等熵压缩达到上止点压力所需的压缩比计算得到）
- 基于有效压缩比及基于时间/绝热指数计算得到的上止点温度 [K]
- 等熵效率
- 点火延迟时间 [ms]
- 气体组分